Home / 18,890.40-28,317.10-7,035.46

Finding the Fourth Proportional to 18,890.40, 28,317.10 and 7,035.46

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Solution

The fourth proportional to 18,890.40, 28,317.10 and 7,035.46 is: 10,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.40 : 28,317.10 = 7,035.46 : x
  2. Step 2: Convert to fraction form
    18,890.40/28,317.10 = 7,035.46/x
  3. Step 3: Cross multiply
    18,890.40x = 28,317.10 × 7,035.46
  4. Step 4: Simplify right side
    18,890.40x = 199,223,824.37
  5. Step 5: Solve for x
    x = 199,223,824.37/18,890.40
  6. Step 6: Final answer
    x = 10,546.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.